Integration and Testing

Authorize.Net API questions and help with your payment integration.

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Recorded Developer Webinars Pinned

Please find the links of our recorded developer Webinars Simplify PCI Compliance with Authorize.Net Accept Learn about Authorize.Net API Integration with OAuth 2.0 Creating Automated Workflows Using Authorize.Net Webhooks Thanks Anurag


API / Features documentation Pinned

Use the features you want to build the payment solution you need. You'll be up and running in minutes. Features : SDKS : API reference :


Use Try It Tab for testing APIs on sandbox Pinned

You can test APIs from our Try it Tab in API reference on sandbox without signup Click on the Try it tab and click send .


Use Testing Guide for Specific Transaction Responses Pinned

Using the Testing Guide, developers can trigger specific transaction responses in the sandbox including approvals, declines, errors, as well as AVS and Card Code responses. If you have questions or comments, please use this thread.

Creating a donation form with RSForm

Hello,I am trying to create a donation form using RSForm with the Authorize.Net plugin for Joomla. I have the form set up, but when I submit my payment, I get the error "Bill To First Name is required."I have my First Name field named firstName, so I...

550 error from Accept.js

Accept.js is returning a 550 access denied error when attempting to fetch a payment nonce. I'm still in development so I don't know if the issue is happening on production as well, but it is happening in the sandbox (



For some reason, whatever request I sent the test API end point just respond with the following error message. Did anyone else experience this? The custom error module does not recognize this error.


Hosted Form and API responsiveness

Hello, We have been successfully using Authorize.Net as our payment gateway for a few years now and are in the process of migrating to the Hosted Form ( to meet PCI complian...


Authorize.NET SIM - Remove credit card

HelloHow I can I remove some credit cards from are displayed 6 cards and I need only Master and Visa (and only accept those two).Where it can be configured?Thank you.

Testing the "Account Updater" feature offered through CIM

Hello, We've successfully integrated our winery ecommerce solution with and have now updated this integration to take advantage of the "Account Updater" feature described here:

Having trouble getting re-started

Please excuse if this becomes a long post. I work for a small web development company that provides custom solutions (often involving e-commerce) to other small-to-medium sized businesses. In the past, I have created my share of solutions using Autho...

Silent Post - Failed to establish connection

Hi, I am using to get a silent post response. However, it throws an error saying "Failed to establish connection with Silent Post URL". I verified the URL which is used and 'am able to comm...

New API Java SDK is not thread safe

We have been using API SDK for a period of time, everything worked fine. We recently want to upgrade our API to the new one. After reviewing the new API, we found that this new SDK implementation is not thread safe and cannot be used. C...

Md5 Hash not match for Refund callback

Hi.I successfully implemented a Silent Post callback url that checks the md5 signiture this way:For Silent Post, these values are used for creating the MD5 Hash, in this exact order:The MD5 Hash Value, which is assigned by the merchant in the account...

Create Shipping Address in CIM, C#

C# in .NET 4.6.2, API from the .net Nuget 1.9.0 package... essentially stock example code from the API docs and the GitHub page. I've been able to delete, but can't update or create new shipping addresses. I haven't checked payment profiles yet. Prof...

Sandbox - is composer necessary to run?

Hi, I have not installed composer because the hello world says you don't necessarily have to - but I have not gotten it to run. I followed the instructions here: The SDK is installed, plus charge-credit-car...


Merchant Account Suggestion Solved

Hi, I'm not sure this is the right forum to ask this type question but I'm setting up a new e-commerce system and have ANet integrated into my app using AIM and am looking for suggestions for a merchant account. I'm tempted to move to Square because ...

Test Card Numbers Not Working Solved

I am currently trying to setup my app to work with accept.js and am testing in a local environment using the sample credit card numbers (found here: However, I keep receiving the following er...

Hosted Payment md5 hash error 99

No matter what I do, I cannot make my fingerprint match that generated by My PHP is below, and it used the hmac function from the SDK. I'm using fixed values for testing purposes. Desp...

Transactions Aren't Being Processed

Hello,My client and I spoke to customer support today and they led us here. My client's business uses to process credit card transactions for subscriptions every month.At the beginning of this month, all transactions have all been shift...

Sandbox won't process transactions (response code 3)

Trying to verify a new version of my software works, using my Sandbox account to run transactions. I just generated a new transaction key, and I'm using that, but I can't actually process any payments using the test card numbers here: http://develope...

Integration of Gateway

Hi guys, I am new to am trying to implement payment gatway but could not understand which one to use and how?can anyone guide me the steps for integration of payment gateway.The technology i am using is PHP plz help.

List of all options for call MerchantAuthenticationType

Hi, I have basic understanding of PHP and so far I am able to use the sample file create-subscription.php to create subscriptions etc. When looking online in the portal I see that I only sent basic informaiton such as the CC, name etc. I also see in ...